Cooking hob



FIG. 1 is a top perspective view of a cooking hob showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines depict portions of the cooking hob that form no part of the claimed design. 

CLAIM The ornamental design for a cooking hob, as shown and described. 